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'''Grasshoppers''' are insects of the order Orthoptera, suborder '''Caelifera'''. They are sometimes referred to as short-horned grasshoppers to distinguish them from the Tettigoniidae|katydids (bush crickets) which have much longer Antenna (biology)|antennae. They are typically ground-dwelling insects with powerful hind legs which enable them to escape from threats by leaping vigorously. They are Hemimetabolism|hemimetabolous insects (do not undergo complete metamorphosis) which hatch from an egg into a Nymph (biology)|nymph or "hopper" which undergoes five moults, becoming more similar to the adult insect at each developmental stage. At high population densities and under certain environmental conditions, some grasshopper species can change colour and behaviour and form swarms. Under these circumstances they are known as locusts. Grasshoppers are plant-eaters, sometimes becoming serious pest (organism)|pests...
Image width200px
Image captionImmature grasshopper
RegnumAnimalia
PhylumArthropoda
SubphylumHexapoda
ClassisInsecta
OrdoOrthoptera
Subordo'''Caelifera'''
Subordo authorityKjell Ernst Viktor Ander|Ander, 1939
Subdivision ranksSuperfamilies
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